Can-cap-hemming machine.



m 892,743. I PATENTED JULY 7, 1908. L. c. KRUMMEL & J. 0. TALIAPERRO.

CAN CAP HEMMING MACHINE.

APPLICATION FILED JULY20.1'906.

6 SHEETS-SHEET 1.

No. 892,743. PATENTED JULY '7, 1908. L. G. KRUMMELK: J. G. TALIAPERRO. CAN GAP HEMMING MACHINE.

I D I APPLICATION FILE JULY 20 1906 6 SHEETS SHEET 2:

No. 892,743. PATENTED JULY 7, 1 908.

L. 0. KRUMMBL & J. 0. TALIAPERRO. OAN GAP HEMMING MACHINE.

APPLICATION FILED JULY 20. 1906.

6 SHEETS-SHEET 3.

PATENTED JULY 7, 1908.

L. G. KRUMMEL & J. O. TALIAPBRRO.

CAN GAP HEMMING MACHINE.

APPLICATION FILED JULY 20. 1906.

6 SHEETS-SEEM 4L INVENTOHJ' W TNESSES:

- PATENTED JULY 7, 1908. L. O. KRUMMBL & J. C. TALIAFERRO. CAN GAP HEMMING'MAOHINE.

APPLICATION FILED JULY 20. 1906.

s SHEETS-SHEET 5.

WIT 5555 S 1N Vli/V 7 ORS A/ ORNEY.

No. 892,743. PATENTED JULY 7, 1908.

\ L. G. KRUMMEL & J. G. TALIAFERRO.

CAN GAP HEMMING MACHINE.

APPLICATION IILED JULY 20 1906.

6 SHEETS-SHEET 6.

INVENTORS 'C/ WITN $55.5.-

* UNITED STATES PATENT OFFICE.

LOUIS C. KRUMMEL, OF CLINTON, CONNECTICUT, AND JOHN C. TALIAFERRO, OF BALTI MORE, MARYLAND, ASSIGNORS TO CONTINENTAL MACHINE COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

CAN-CAP-HEMMING MACHINE.

To all whom it may concern:

4 Be it known that we, LOUIS C. KRUMMEL, residing at Clinton, Middlesex count State of Connecticut, a citizen of the Unite States,

and JOHN .C. TALIAFERRO, citizen of the complete article ready to be soldered n place.

The inventlon conslsts broadly in a machine 0 crating on a new principle inwhich the solc er rings, formed and cut from the solder ribbon, are brought into the path of the cans, and the various operations of forcing the cap into the ring and securing the ring on the cap are performed, while those arts are being moved through the machine in a straight path and without changing their direction of movement, whereby the solder ring is secured on the cap securely and smoothly, and the work is performed wit-h certainty and great ra idity. Our invention lies also in the combinations of the various parts, and in the details of construction and arrangement of the parts. i

' The characteristic feature of our invention is a straight main assa e, being preferably a tubular passage tlirough the punch and the die and between the closin jaws, in which operates a plunger. The solder ribbon is fed across this passage by any suitable means. The solder ring having been formed and j severed from the ribbon, rests momentarily in the passage, and the cap, fed into the passage behind the ring, is then immediately forced into the ,ring by the plunger, and the cap and ring together are then forced through the die and between the closing jaws or equivalent mechanism, whereby the various steps are performed of strai htening up the ring flange, bending the ange inwardly over the cap and then crimping it fast and smooth. A plug may be arranged to operate in opposition to the plunger to hold the cap and ring and to effect this crim ing. When the criming has been complete the parts of the mac iine open and the finished hemmed ca drops out.

n the construction of machine here shown,

Specification of Letters Patent.

Application filed. July 20, 1906 Seria1 No. 327.064.

. moved.

Patented July 7, 1908.

the cap is fed immediately in front of the plun er into the hollow-solderring cutting= punc 1, which forms part of the main passage. The cap there fits snugly so as to be perfectly centered and held true, without danger of tilting. The plunger at once advances to force the cap firmly into the ring groove and then to move the cap and ring together through the passage without releasing them until the hemining operation is completed.

The preferred form of machine embodying our invention is shown in the drawings herewith, in which the reference letters and unmerals of the s ccification indicate the same partsinall the gurcs.

Figure 1 is a plan of the machine. Fig. l is a side elevation taken from the left of Fig. 1. Fig. 3 is a corres )onding elevation taken from the right, with the ribbon guide re- Fig. 4 is a portion of Fig. 3 showing the plug ca1n-in section. Fig. 5 is an enlarged lohgitudinal section parallcl to Fig. '2. Fig. 6 is an enlarged cross section parallel to Fig. 1. Figs. 7 and 8 are partial sections showing the operation of the machine and the parts in different position from Fig. 6.

Figs. 9, 10 and 11 are elevations illustrating the closing jaws. Fig. 12 is a rear elevation of a portion of Fig. 3 relating to the cap feed chute. Fig. 13 1s a longitudinal section of a portion of Fig. 7' taken at a different angle to show a pair of opposite jaws in section. Fig. 14 is an isometric view of a single jaw detached.

In the figures, 1 indicates a suitable standard or frame having bearings 2 2 atthe rear for the driving shaft 3, carrying the pulley 4 for a driving belt, and the inion 5, meshing with the gear 6, on a paral journaled in a bearing 8, and carrying the main cam 9.

Connected by miter gears 13 13 to rotate with the main shaft is the crank 17 journaled by pin 14 in bracket 15, and connected by connecting rod 18 to the arm of the opening cam 20 for the closing-jaws; 16 is the crankpin; this cam is suitably 'ournaled, for instance, on one of the feed-roller shafts 22. Said opening, or oscillatingv cam 20, carries a pawl 24 held by a suitable spring 25 in en ga ement with the ratchet on the feed rol er 28, connected to the feed-roller 29 by gears 32 32, whereby the feed-rollers are r'otated intermittinglv to feed step-by-step the lel main shaft 7, v

' bolt 41.

erated by the main cam 9 is retracted, One of the feed-roller shafts the ring tight on the ca solder ribbon A, when the cross-head 84, o'p' in guide-ways 35,

22 may be journaled in a box 36 and the tension adjustedby means of the spring 40 on The ratchet 26 may hav'eas many teeth as desirable preferably the pawl moves one tooth for each movement of the solderribbon. The ribbon A is drawn by the feed-rollers from a reel mounted at any suitable point over a roller and through the guide 46 along the frontedge of the cross head, Where, as a preliminary operation and-in the first position, the central blank X is cut away to form the hole in thesolder ring,cand the ring suitably grooved; the ribbon then fed one step, bringing the ring into the second position in the main assage, Where all the other operations are e ected of cutting-the ring from the ribbon, delivering the cap into the ring, straightening the ring flange and pressing it in over the cap, and finally crimping A curved guide 46 is here shown, whic is convenient in some cases, but the guide may be of any suitable form. To the main bracket 50 is fitted a bolster 5l to which is secured the die 52, internally to prevent the ing dropping back and then very slightly ofi'set at 53, to allow a slight 'clearance so that the punchings may easily be ejected (Fig. 6). To the cross-head 34 is fitted a corres ending back-bolster carrying the punc 56, which is moved by the crosshead against the die to cut the center hole in thering. This die and punch are also formed the solder ring for the cap. -Said d1e bolster 51 and back bolster 55 are-.provided'with tongues 58 and adjusting screws 59 whereby the die and punch may be exactly centered to register} To this end, the securing bolt 47, for bolster 51, is arran ed in slot 48 in main bracket 50,. Similar s ots in cross head 34 for bolts 49 may be provided, but are not straight for a short distance,

. necessary.

The center hole having been cut, the rib.

bon is moved forward to the second osition, where, on the advance of the crossead 34,- the solder ring B is severed froin the ribbon by the main or cutting-punch 65, secured on.

the cross-head by p unger' plate 7 0, with which cooperates the main die.66 detachably secured as by a thread to its bolster or plate 67, so as to be removed when worn. Around the main-punch is arranged the'cylindrical a stripper 68 provided with s rings 69 to force it 4 forwardly, whereby the rib on 1s held smooth between the flat surfaces and the die, and is stripped oifthe main -punch when the cross-head is withdrawn.

The die and punch they are bot the. cap and is cut of opening cam 20, now to be descri rin as shown to form the 'roove around the-edge .0?

then withdraws and "the'plug on its return acts fina I edges and on tion by one or more closing of the stripperv may be'reversed, and

seams the die arran ed on the cross-hea d, but as freely but snugly and centers the cap so .that

it is, forced true into the tin. Itwill be seen that'the ring is of larger iameter than proper size so that the cap .fits exactly into-the groove.

1 mmediately on' the cutt lunger vances and forces the cap before it through the punch into the ring, -e

generally so as to embedded in the ring, and then with the ring through the hollow die 66 made slightly ta ering internally, for the pur 'ose of'grad-- ua lly straightening up the ring nge around the cap, into the position shown 1nv Fig, 7, and toward the closing jaws E, opberated by operation is here efiected first of turning the rm flange inwardly, so as to insure that it be crimped in on the ca and not be upset outwardly, and'second o crimping the ring tight on the'cap. As'the plunger moves withinv the closing jaws by the plug F, controlled by mechanism to be described. The

cap and ring so gripped are then carried forward throughthe. aws to the full stroke of the plunger. The jaws open topermit them to pass and whereby the wardly and the tightened and set true the cap. The plunger the jaws remain closed, to act. as a resistance or anvil a ainst which ly to crimp down tight and smooth the solder ring on the cap. As a final step-the plug withdraws and the jaws open to permit the finished ca to drop out. The jaws are beveled on t eir v the outer surface to fit the cap of the form shown. As shown in Figs. 7 and 8, the ring flange is wider than the portion of the ring under the cap, bulk of the' solder wheredesired- As best shown in Figs. 6, 9,10, 11, 13 and 14, this ed." Thepreferably immediately close,-

ange is turned or started inthus bringing the". i

hollow, whichever "-part re- 1 came the cap from 'the chute receives it of thering, andfwhile the'cross-headdtv'ells for an indrawn 'the cap and ring forward, they are met 'just closing jaw mechanism, consists ofthe four;

y jaw-ring 73 having inclined, or cam,

grooves 74 engaging with a in 75 on each jaw. This ring is maintaine in closed posinected to ring arm} 77, an

first to pass, and second to drop out,.by jaw- Inoved radially at proper times springs 76, conv j is swung, or turned, to open the jaws topermit the cap,

lever 79, pivotally mounted at 80 and forced against the ring arm 7 7 in turn by the high points b and c on jaw-cam 20.

78 is a buffer-spring for the jaw lever 7.9, having an adjustin screw a. (See Fig. 1). The jaws, as best shown in Figs. 13 and 14 have rather thick edges of which; the inner portion e, that is the ortion first meeting the cap and ring, is beve ed like the main die 66, and the outer portion 6 is concave to'coperate with the-plug finally to crimp the ring tight on the cap, as shown in Fig. 8. I The cross-head is operated by the main cam 9, engaging with anti-friction roller 82, and having the longer dwell 81, on the back stroke to permit the ribbon to. move from the first position to the second, and a short dwell 83 on the in-stroke to permit the plunger to 0 erate as aforesaid on the cap and ring. T ,e plun er is operated during the said short dwel by the crank 84 j ournaled on the cam at 85 and connected to the plunger by screw connection 86 adjustably secured to the wrist 87 forming a part of said crank.

88 is a buiier spring for the cross-head gfitted to bolt 89.

The plug F, fitted to a bearing 90, is operated by a crank 91 on the rock-shaft 92 arranged in bearings 93 on the front of the machine, and having crank 94 at its right, or

' the chute.

outer, end connected by plug rod 95, arranged in bearing K, to the plug lever 96,

journaled at 97 and havin an anti-friction roller 98, engaging-with t 'e-plug cam 99, which maybe secured on the left race of the main gear, or connected to rotate therewith by other means. I This cam has a cam face provided with a high point g, to advance the plug within the jaws, a lower point h to permit it to retract, and a. second high point 9' preferably higher than g, whereby the ring is crimped hard against the closed jaws. m and n are respectively a bufier-spring and a tension-spring for the plug rod and p p are adjusting nuts for said springs. spring connected to 'arm'r and to the plug to take up any lost motion in the rocker arm and the plug lever and to act as a cushion against a sudden jar, when the punch crimps the ring on the cap. be provided with a supplemental tip P;- a similar tip might in some cases be desirable 'in thebplunger; but the tip of the plunger is desira y made smaller to prevent jamming.

In Figs. 3 and 12 is shown desirable means for controlling the feed of thecaps .through In bearings s 8 on the sides of the chute is fitted a rock-pin t, carrying a vertically arranged rock-lever u, having both at its upper and at its lower end a stop-pin 4), (provided with a buffer-spring). These pins are alternately rocked in and out of the chute passage to engage with the caps and permit them to passone by one. On the end of the rock-pin is-atrigger to which engages a stop a:

on the bolster 67, when the cross head moves 9 is a tension If desired the plug may forward, and the rock-lever is rocked into the position shown in Fig. 3, permitting the owest cap to drop from the chute into the main passage but retaining the upper caps in the chute. When the cross-head withdraws,

formingt e solder ring and delivering it into said passage in the ath of the cap,'and in combination therewit means to force the cap into the ring and then to force the cap and ring together through said passage, and means arranged in said passage to crimp the ring on to the cap.

2. In a machine for hemming caps pro- .vided with a straight tubular passage, the combination with means for feeding the solder ribbon across the passage, of means for delivering the caps one by one into the passage, and means arranged to operate in the straight passage for first cutting the ring from the ribbon, second forcing the cap into the ring groove, third moving the cap and the ring forward in the assage and turning the rin flange straight ack, fourth bending slight y inwardly the ring flange over the upper surface of the ca and comressing the ring on the edge of t 10. cap, and fth crimping the ring firmly on the cap.

.3. In a can cap hemming machine provided with a straight passage, means for delivering the caps and rings into the assage, and, in combination therewith, means op erating in the passage for forcing the cap into the ring, means for turning back the ring flange, means for bending inwardly the ring flan e and crimping the ring smoothlv against the upper surface of the cap, all 6r said operations after the caps and rings have been deliveredinto the passage being effected while the cap and ring are moving forward in a straight line through the passage and without changing their direction of movement.

4. In a machine "for hemming can caps having a straight tubular passage, the co1nbination with means for delivering the caps into the passa e, means for forming the solder ring and delivering it into the passage, means for forcing the cap forward in the passage into the ring groove, means for forcing the cap and ring in engagement forward in the passage, means for straightening the ring flange back while the parts are so moving forward-means operating in the passage for compressing the ring on. the cap edge. and bending the flange slightly in over the llb the passage, closing jaws in the passage,

means .to operate the jaws to permit the cap and ring to pass and then to close the jaws, a plug, and means to operate the plug to crimp the ring on the cap in cooperation with the jaws.

6. In a machine for hemming caps having a straight, tubular passage, substantially circular in cross section, of means to feed the caps in succession into the passage,'means to move the solder ribbon step by ste across the passage,- means to cut the sol er ring from the ribbon and to groove the ring, a plunger to force the cap intot-he. ring'and to move the combined cap and ring through the passage, means to operate the plunger, clos mg jaws m the passage, means to operate the jaws to permit the cap' 'and ring to pass and then to close the jaws. a plug, andmeans to operate the plug against the jaws, to crimp the ring on the cap.

7. In a can-cap hemming machine having a straight tubular passage, the machine being so arranged that said passage is upwardly and forwardly inclined, the combination with. means for forming the solder rings and delivering them one by one into the passage, of means for delivering the caps, one by one,

into the passage behind the rings, a plunger arranged to move the cap and the ring forward through the passage, means to operate the plunger, a plug arranged in alinement with the plunger and means to move the plug first to grip the cap and ring between it and the plunger, then to retract the plug and then to move it again rcarwardly to compress the cap and ring against a suitable abutment, to crimp the ring on the (rap.

8. In a machine for hemming caps providedwith a. main tubular passage, the combination with means for forming the solder ring and cutting the center therefrom, of means for delivering the ring into the )assage and severing the ring from the ribbon, means for 'leliv(- ring the cap into the passage behind. the ring, closing jaws in the passage near the forward end, 11163118110 open and rlose the jaws, means to force the cap and the ring through the passage and between the jaws, and means to force the rap and the ring back against the jaws to erimp the ring on the cap.

9. lo. a camcap hemming maehiue having a straight, tubular passage, the (-ombiimtion move the cap) Y with means for formingthe solder ring and delivering it into the epassage behind the ring,

radially sli ing jaws arranged to extend into the passage near its outer end, means to 0 en and close the jaws, a lunger arranged to and ring orward through the passage and etween the jaws, means to, operate the plunger, a plug arranged'in alinement withthe plunger and adapted to move reversely thereto, and means to move the plunger rearwardly between the jaws and to grip the combine cap and ring in conjunction with the plunger and means then to retract the plug and again to move it rearwardly finally to crimp the ring on the cap by the pressure of the plunger against the closed jaws.

10. In a machine for hemming can caps,

provided with a straight passage, the combi- ,nation with means to deliver the caps and the rings into the passage toward one end, of

closing jaws arranged near the other end of the passage, means to force the cap-into the ring and move the two together through the passage and between the jaws, means to open the jaws to permit the cap and ring tofpass and then to close the jaws to bend slightly in the ring flange. and to compress thering on the edge of the cap, and means to force the cap and ring back against the closed jaws to.

crimp the ring on the ca 4 1].. In a machine for hemming can caps, the combination with a supporting frame, of a tubular die fixed thereon, a cross-head, a tubular punch on the cross head to fit within tween the die and the pun'eh,1neans to ad the die, means to move the solder ribbon bevance the cross-head to cut the ring from the ribbon by the cooperation of the unch and the die, a plunger fitted to. a bearing on the cross-head in alinement with the passage through the die and'the punch, means to deliver the. caps into the passage in front of the plunger, means to advance the plunger indeendently of thecross-head, when the crossiiead is in forward'position, to move the cap and ring through the tubular die and punch,

a tubular stripper arranged around the punch, and springs to force the stripper be-- yond the punch when the cross-hear is retracted.

12. In a machine for hemming can caps, the combination with a supporting frame, of a tulmlardie fixed thereon, said die being of suitable interior diameter to receive the solder ring and tapering from a large diameter at its mouth to aslightly smaller diameter, of

a cross-head, a tubular punch on the cross-' head, said punch fitting within the die and being of a suitable interior diameter to receive the cap, means to move the solder ribbon between the die and the punch, means to advance the cross-head to cut the ring from the ribbon by the cooperation of the punch and cross-head in alinement with the passage through the die and the punch, said lunger having a top of smaller diameter than its shaft, means to deliver the caps into the passage infront of the plunger, means to advance the plunger independently of the cross-head, when the cross-head is in forward position to move the'cap and ring through the tubular die 'and punch, a tubular stripper arranged around the punch, and springs to force the stripper beyond the' punch when the crosshead is retracted.

13. In a can-cap hemming machine, the combination with a suitable supporting frame, of a die fixed thereon, a cross-head fitted to slide on the frame, a punch on the cress-head fitting within the die, said die and punch being hollow to forma passage for the cap and ring and the hollow interior of the diebeing slightly tapered, means to move the solder ribbon between the punch and the die, means to advance the cross-head to cut the ring fromthe ribbon by the conjunction or cooperation of the punch and the die, an annular stripper arranged to fit around the punch, springs to force the stripper forward eyond the punch when the cross-head is drawn back, a circle of radially moving or sliding jaws arranged beyond the tapered portion of the die to extend into the passage, a plunger operating in the passage, means to operate the plunger to force the cap and the ring through the passage and beyond the jaws, a plug arranged in the outer end of the passage, and means to operate the plug to complete the crimping of the ring on the cap in cooperation wit the closed jaws.

14'. In a can-cap hemming machlne, the combination with a suitable frame, of a main bracket thereon, a bolster on the bracket, a

tubular ring center cutting die, detachably secured on the bolster, said die being slightly "enlarged or offset a short distance from its mouth, a cross-head fitted to inclined guideways on the frame, a bolster on the crosshead, a punch on said cross-head bolster to cooperate with said die to cut the center blank from the solder ring, securing screws to secure-said bolsters in position, a die plate secured on the bracket parallel to and at one side, of the fixed bolster, a main tubular die detachably secured on said die plate, said main die interiorly tapering and being of an interior diameter snugly to receive the solder ring, a punch plate secured on the crosshead op osite to the die plate, a tubular punch t within the main die and being of an interior diameter snugly to receive the: cap, a plunger having a tip'of reduced size arranged to more the cap and the solder ring through the passage formed by said tubular die and punch, radially moving jaws supported in tween the dies andthe punches and' means to operate the plug reversel to the plunger and in cooperation with the p unger and the aws, substantially as described and shown.

15. In a can-cap hemming machine, the combination with a suitable frame, of amain bracket thereon, a die plate secured on the frame, a main tubular die detachably secured on said die late, said main die interiorly tapering and being of an interior diameter snugly to receive the solder ring, a punch plate secured on the cross-head op osite to the die plate, a tubular punch detacfiably secured on said punch plate, said tubular punch being adapted to fit within the main die and being of an interior diameter snugly to receive the cap, a plunger having a tip of reduced size arranged to move the cap and the solder ring through the passage formed by said tubular die and punch, a series of radially moving jaws suitably supported in front of said main die; a plug arranged in a bearing forwardly of the aws and in alinement with the plunger, a suitable shaft, means to operate said shaft, a main cam on said shaft rotating in engagement with the cross-head and adapted to move the cross-head in an upward and forward incline, said cam being formed with a long dwell to operate when the cross-head is forward and with a short dwell to o crate when the cross head is back, a crank on said cam connected to the plunger,

means to cut the center blank for the ring in the ribbon, means to groove the ribbon around the hole so formed, means to feed the solder ribbon step by step between the die and the punch, and means to operate the plug rcversely to the plun er, to coo erate with the plunger and with the jaws, su stantially as described and shown.

16. In a machine for hemming caps provided with a straight tubular passage, the combination with means for'fee'ding the solder ribbon across the passage, of means for delivering the caps one-by one into the pas sage, ZLTN a series of means operating in said passage in succession for cutting the solder ring from the ribbon, forcing the cap into the ring, moving the cap and ring forward in the passage, an finality crimping the ring tight and smooth onto the cap.

17. In a cap hemming machine provided with a straight passage, means for delivering the caps and rings into the passage, and in combination therewith means for forcing the cap into the ring and means for crimping the ring tight and smooth against the upper surface of the cap, said operations, after the caps and rings have been delivered into the passage, being effected while the ca s and rings are moving forward in a straig t line throu h the passage and without changing their irection of movement; v

18. In a machine for hemming can caps having a straight tubular passage, the combination with means for cutting the center blank from the ring in the ribbon and suitably grooving the ring, means for moving the ribbon to bring the ring so formed into the passage, means operating in the passage for separating the ring from the ribbon, means for delivering the caps into the passages and 15 moving them forward therein in the ring groove, and means operating in the passage to crimp the ring tight and smooth onto the n testimony whereof we have signed our 2-) names to this specification in the presence oftwo subscribing witnesses.

LOUIS o. KRUMME'L. JOHN .o. TALIAFERRO.

Witnesses:

J. R. MILLwARD, M. B. SMITH. 

